<template>
  <div class="chat-history">
    <v-toolbar dense class="chat-history-toolbar">
      <v-text-field flat solo full-width clearable prepend-icon="search" label="Search" />
    </v-toolbar>
    <vue-perfect-scrollbar class="chat-history--scrollbar">
      <v-divider />
      <v-list two-line class="chat-history--list">
        <v-subheader>History</v-subheader>
        <template v-for="(item, index) in chats">
          <v-divider :key="index" />
          <v-list-tile :key="item.title + index" class="chat-list" avatar :to="chatRoute(item.uuid)">
            <v-list-tile-avatar :color="randomAvatarColor(item)">
              <img v-if="item.users.length === 1" :src="item.user.avatar">
              <span v-else class="white--text headline">{{ firstLetter(item.title) }}</span>
            </v-list-tile-avatar>
            <v-list-tile-content>
              <v-list-tile-title> {{ computeTitle(item) }}</v-list-tile-title>
              <v-list-tile-sub-title>Some Latest message</v-list-tile-sub-title>
            </v-list-tile-content>
            <v-list-tile-action>
              <v-list-tile-action-text>
                {{ formatChatTime(item.created_at) }}
              </v-list-tile-action-text>
              <v-circle dot small :color="chatStatusColor(item)" />
            </v-list-tile-action>
          </v-list-tile>
        </template>
      </v-list>
    </vue-perfect-scrollbar>
  </div>
</template>

<script>
import { Groups } from '@/api/chat'
import { getUserById } from '@/api/user'
import VCircle from '@/components/circle/VCircle'
import Util from '@/util'
import VuePerfectScrollbar from 'vue-perfect-scrollbar'
export default {
  components: {
    VuePerfectScrollbar,
    VCircle
  },

  data: () => ({
    chats: Groups
  }),

  methods: {
    chatRoute(id) {
      return '/chat/messaging/' + id
    },
    firstLetter(title) {
      return title.charAt(0)
    },
    formatChatTime(s) {
      return new Date(s).toLocaleDateString()
    },
    computeTitle(item) {
      const username = (item.users.length === 1) ? getUserById(item.users[0]).username : ''
      return item.users.length === 1 ? username : item.title
    },
    randomAvatarColor(item) {
      return item.users.length === 1
        ? ''
        : Util.randomElement(['blue', 'indigo', 'success', 'error', 'pink'])
    },

    chatStatusColor(item) {
      return Util.randomElement(['blue', 'indigo', 'success', 'error', 'pink'])
    }
  }
}
</script>

